I do this with my WearOS smartwatch (gen 4 Fossil Sport). It works pretty well overall, although I had to find a third-party app (WMusic) to allow copying music

I do this with my WearOS smartwatch (gen 4 Fossil Sport). It works pretty well overall, although I had to find a third-party app (WMusic) to allow copying music to the watch and playing without an active connection to the phone.